Window-screen



(N MOdeL) I J. M. MONTGOMERY, Jr

- -WINDO W SQREEN. V I I NO. 272,302. 4 Patented Feb. 13,1883

WITNESSES:

' V ATTORNEYS.

" UNITEDI STAT S PATENT OFFICE.

JAMES M. MONTGOMERY, JR, OF coLUMBUs, OHIO.

WINDOW-SCREEN.

SPEGEEFICATION forming part of Letters Patent No. 272,302, dated February 13, 1883.

Application filed September 9, 1882. (No model.)

To all whom it may concern Beit known that I, JAMES M. MONTGOMERY, Jr., of Oolum bus, in the countyof Franklin and, State of Ohio, haveinvented certain new and useful Improvements in Window-Screens; and I do hereby declare that the following is a full,

clear, and exact description of the invention,

which will-enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, which form a part of this specification, and in which- Figure 1 is a plan view of my improved window-screen, and Fig. 2 is a detail view of the same.

Similar letters of reference indicate corresponding parts in both the figures.

My invention has relation to adjustable window-screens; and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

1n the accompanying drawings, the letters A B G and D E F indicate two rectangular three-sided frames, to each of which are fast' ened two pieces of wire cloth, G and H, stretchedbetween the three sides of the respective frames. The free edgesof these pieces of wire-cloth may be stiffened and prevented from sagging by being folded around and fastened to thin steel rods, or by bindings of stiff sheet metal, as shown at g and h in Fig. 1. The top and bottom pieces, A O and D F, of the frames have shallow recesses or rabbets where the wire-cloth is fastened on them, as shown at I, to admit of the frames sliding close to each other without the edges of the two pieces of wire-cloth and. their fastenings interfering with each other. I

a and df are T- shaped grooves in the top and bottom pieces of the frames. In the outer ends of these grooves are fastened I-shaped metal castings J, which slide in the grooves of .dow.

the corresponding pieces, guiding the frames and holding them together. These metaleastings are of a peculiar shape, as plainly shown in Fig. 2 of the drawings. The part j of the stem connecting the two cross-heads is k is thicker than the sliding portion 3', so that the castings may be inserted into the ends of the grooves, and stay rigidly fastened by their thicker portion in theends of the grooves, while their thinner portion slides freely in the opposite groove- A notched block, K, is fastened on the one side piece E, so as to form a handle for the 'one hand, while the other hand is held against the side pier-e B in inserting or removing the screen or adjusting it to the size of the win- Having thus described myinvention, Iclaim and desire to secure by Letters Patent ot' the United States- 1. The castingJ, having cross-heads 7c 7r, united by the stemj. shouldered at its middle part to form the reduced shank j, as shown and. set forth.

2. In an extensible window-screen composed of the three-sided frames A B G and D E F, sliding upon one another, the casting J, fixed with one of its cross-heads k and thick partj in the top and bottom rails of one of theframes, with its reduced end j and appropriate crosshead It inserted into and adapted to slide freely in the T-shaped groove or channel of 73 the corresponding rail of the opposite frame,

JAMES M. MONTGOMERY, JR.

Witnesses JAMES CAREN, BENJ. WUODBURY. 

